Home / 3,399.03-4,690.85-2,001.78

Finding the Fourth Proportional to 3,399.03, 4,690.85 and 2,001.78

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Solution

The fourth proportional to 3,399.03, 4,690.85 and 2,001.78 is: 2,762.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.03 : 4,690.85 = 2,001.78 : x
  2. Step 2: Convert to fraction form
    3,399.03/4,690.85 = 2,001.78/x
  3. Step 3: Cross multiply
    3,399.03x = 4,690.85 × 2,001.78
  4. Step 4: Simplify right side
    3,399.03x = 9,390,039.70
  5. Step 5: Solve for x
    x = 9,390,039.70/3,399.03
  6. Step 6: Final answer
    x = 2,762.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.